<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // let abc = 333333
        // const obj = {
        //     abc : {},
        //     bbb(){
        //         obj.abc.a = 1
        //         // console.log(abc)
        //         console.log(obj.abc)
        //     }
        // }
        // obj.bbb()
    
        let str = 'qweq'
        // console.log(str.constructor)
        console.log(str.__proto__)
        console.log(String)
        // console.log(String.constructor)
        console.log(String.prototype)

        // 12 + 14 + 30 + 15 + 14
        // 13 - 14 - 15 - 14 - 13  
    </script>
</body>
</html>